Coke oven



Jan. 8, 1929. v 1,698,272

c. OTTO COKE OVEN Filed April 9, 1927 "F7 'f/ "i 77/7' "1 INVENTOR 4 TTORNEY 7 gas nozzles located on the floorend of the Patented 8, 1929,

UNITED STATES o'r-ro, or ESSEN-RUHR, GERMANY.

COKE OVEN.

Application filed April 9, 1927, Serial No. 182,342, and in Germany April 3, 1926.

The top walls of coke ovens usually are provided with inspection holes. These holes allow the operator to watch. the stages and conditions of the combustion taking place in the individual heating flu'es of the oven, to adjust the damper bricks located on the top end of said flues, and, further, to clean the ues b pushing a Stoker orthe like through them roin above, when these nozzles have become stopped up. My invention relates to a construction of these well-known inspection holes. According to my invention the openings in the oven top are so constructed that theyadmit an exchange from the top, of said heating gas nozzles ,on-the lower end of the flues. To this end, an opening is provided inthe masonry of thetop and is filled by a. removable brick having a' passage aligned with the opening loosely put therein, so that an inspection hole exists even when said. brick has been put in, whilst the brick has to be withdrawn when the nozzles are to be exchanged.

In order to allow of my invention to be more easily understood, a preferred embodiment of same in a coke oven having vertical heating walls is illustrated in the drawing which accompanies and formspa-rt of this specification. In this drawing:

.Fig; 1 is a longitudinal section through a portion of a heating wall of a coke oven, and

Fig. 2 is a partial cross section through the oven batte u As to be seen from Fig. 1, each heating wall is subdivided inthe known manner so as to cover brick e. The openin annular shoulder d on w 1ch a removable on the contrary,

filling brick 7 having a central inspection assage f, may be put. The cover bricks e likewise have passages e situated vertically above the assages f of the bricks f and adapted to he closed by a stopper g. As to be .seen from the drawing, the filling bricks f need not completely fill the whole height of the opening d, the height-of bricks f being, referably so determined, that the bricks a ord a satisfyin against the heat radiating from t cheating isolation flues in upward direction and loosely filling the opening in the top oven. A brick or iron fitting tube It may be interposed between brick e and brick f, and the space existing between this tube h and the wall of the opening d maybe filled with an asbestos mass or the like, if required, The 0 ening in the oven top, the passage in the llin brick f, the fitting tube and the cover bric 6, communicate with and are aligned with therespective heating 'flues. 'For the purposes hereinbefore explained, of the well-known inspection holes, with the oven of my invention nothing is required but the removalof the stoppers 9. Furthermore, besides this, an exchange of the nozzle bricks from the top is rendered possible in the simplest manner 'by merely removing, after the withdrawal of the cover bricks e, the tube It and brick f from the opening d in consideration, so that the nozzle is in question may be withdrawn from above in a very easy manner. What I claim as my invention and desir to secure by Letters-Patent, is 1. A coke oven comprising a vertical heatmg flue and a removable burner nozzle in the same, the top of said oven having an opening therethrough communicating with and in 7 alinement with said flue and of such diameter as-to permit the removal of the burner nozzle through said opening, a removable cover brick closing said opening, the latter having an internal shoulder near its lower end, a removable filler brick loosely filling said opening and resting on said shoulder, both ofthe bricks being provided with sight holes in alinement with said flue, and a tubular member extending between said bricks and of substantially smaller diameter than said opening, whereby a space is provided around said member to receive a heat resistant and insulating packing material, the aperture through said tubular member being in .aline-- ment with said holes.

2. A coke oven comprising vertical heating flues and removable burner nozzles in the lowerends of said fiues, the oven top having openings therethrough communicating with and in'alinement with the flues and of sufiicient diameter to permit the removal of the nozzles throu h the said openings, removable cover bricks closing said'openings, removable filler bricks loosely fitted in the lower part of said openings, all of said bricks having central sight holes, and a tubular member in each opening extending between the filler and.

cover bricks therein and of substantially smaller diameter than the opening, whereb a space is left around said member to receive heat resistant and insulatin material, the aperture through each of sai tubular members being in alinement with the holes in the cover brick and filler brick in the same opening therewith.

3. In a coke oven having vertical openings through its top, vertical heating fiues directly beneath said openings, and communicating therewith, a removable burner nozzle in each flue, said openings being of a size to enable the burner nozzles to pass therethrough and the lower portion of each openin having an internal shoulder, a removab e filler brick loosely fitted in each opening and resting on said shoulder, a removable cover brick 0103- 1:

over each flue, the aperture through each of said tubular members being in alinement with the holes in the cover brick and the filler brick in the same opening therewith.

In testimony whereof, I have signed my name to this specification. i CARL OTTO. 

